How to convert ALAC to FLAC?

Question

I have some ALAC files (.m4a) that I want to convert to FLAC (.flac). How can I do this?

score 13 · Accepted Answer · edited Apr 13 '17 at 12:24

Install ffmpeg:
```
sudo apt-get install ffmpeg
```
Files can be converted to FLAC from ALAC via the command ffmpeg -i audio.m4a -acodec flac audio.flac. To do this for a while directory of files go to that directory (cd path) and issue the following:
```
for f in *.m4a; do ffmpeg -i "$f" "${f%.m4a}.flac"; done
```
(Optional)
- Add replay gain to the FLAC files.
- If the conversion is successful you can remove the ALAC files.

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